Good morning (from here), lionair@samsung.com (???×?) wrote:

I wonder which percentage is good level of CPU and Memory util of network equipment ? In my case, I try to keep under 30% cpu util and 70% memory util. My most equipment are Cisco product. I have no technical reference about that, it is just a rule of mine or my predecessor. Could you tell me how other operators are doing ? what is your operation baseline ? or is there any guideline about process utilization ?

I'm trying to keep all Cisco equipment idle, if at all possible, since there may come worse times... Typical exceptions are - software forwarding routers, where CPU load is directly depending on current traffic levels; should the load stay above 15-20% all the time, it's time for an upgrade - slow-CPU boxes like everything Cisco with SUPs, since the CPU load _always_ jumps to 100% for short periods of time - BGP needs something calculated ;-) I get interested whenever CPU load _stays_ high - switches; Cisco switches need like 5% CPU to blink the LEDs ;) It gets more interested with packet filters and load balancers, where CPU loads depend on traffic levels and patterns. I try to keep the baseline between 5 and 10%. HTH, Elmar.